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A344914 T(n, k) = 2^(3*k)*(n - 3*k)!, for n >= 0 and 0 <= k <= floor(n/3). Triangle read by rows. 1
1, 1, 2, 6, 8, 24, 8, 120, 16, 720, 48, 64, 5040, 192, 64, 40320, 960, 128, 362880, 5760, 384, 512, 3628800, 40320, 1536, 512, 39916800, 322560, 7680, 1024, 479001600, 2903040, 46080, 3072, 4096, 6227020800, 29030400, 322560, 12288, 4096 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..39.

EXAMPLE

[ 0] 1;

[ 1] 1;

[ 2] 2;

[ 3] 6,         8;

[ 4] 24,        8;

[ 5] 120,       16;

[ 6] 720,       48,      64;

[ 7] 5040,      192,     64;

[ 8] 40320,     960,     128;

[ 9] 362880,    5760,    384,   512;

[10] 3628800,   40320,   1536,  512;

[11] 39916800,  322560,  7680,  1024;

[12] 479001600, 2903040, 46080, 3072, 4096;

MAPLE

T := (n, k) -> 2^(3*k)*(n-3*k)!: seq(seq(T(n, k), k = 0..n/3), n = 0..13);

CROSSREFS

Cf. A000142, A138230.

Sequence in context: A153802 A217019 A240644 * A068496 A340810 A334898

Adjacent sequences:  A344911 A344912 A344913 * A344915 A344916 A344917

KEYWORD

nonn,tabf

AUTHOR

Peter Luschny, Jun 06 2021

STATUS

approved

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Last modified September 19 00:22 EDT 2021. Contains 347549 sequences. (Running on oeis4.)